Its when you have a bmx seat clamp on the fork and u push down on da bars to get the headset tight and then you tighten the clamp and then you can tighten you,re bar clamp i think? any one else no how to explain it better?
i have a seat post clamp already on, but im just rockin threaded, so i can ride the threadless fork with my threadless headset,seat post clamp, and my normal bars?